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John Leininger is a professor in the Department of Graphic Communications at Clemson University. He has been teaching at Clemson for 24 years and has taught classes in lithography, flexography and production management and control. For the last 6 years he has focused his teaching and development in the digital printing, mailing, database and marketing service section of the industry. He teaches many training classes around the country and has offered several classes electronically to the industry dealing with marketing and this spring semester is running a 15-week course on mailing, fulfillment and marketing services for printers.